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Science Friday

Science Friday, as heard on PRI, is a weekly discussion of the latest news in science, technology, health, and the environment hosted by Ira Flatow. Ira interviews scientists, authors, and policymakers, and listeners can call in and ask questions as well.

society & culture

All Episodes

48:04

Immunocompromised and Covid, Summer SciFi Reading....

Science Friday ·

2021/06/18

COVID-19 Vaccines May Not Protect Immunocompromised People This week, California and New York, two of the states hardest hit by the COVID-19 pandemic, announced that they were relaxing almost all coronavirus-related business restrictions. Across the country, vaccination numbers are slowly ticking up—although a troubling COVID-19 variant known as Delta is picking up as well. As things reopen, experts warn that people with compromised immune systems may not be well protected, even if they do get the

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48:00

Marijuana And Medicine, Cephalopod Week,...

Science Friday ·

2021/06/18

How To Talk About Medical Marijuana With Your Doctor Over the last decade, cannabis has had a moment. Thirty-six states and Washington D.C. have legalized it for medical use. (Fifteen states, plus D.C., have also legalized weed recreationally.) Altogether, about 5.5 million people in the U.S. now have medical marijuana cards. One of the primary arguments for expanding marijuana laws is the drug’s potential usefulness for medical treatments. While each state has its own rules for which conditions

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48:30

Health Equity And Trans Health, Human-Robot...

Science Friday ·

2021/06/11

Biden’s New Assistant Secretary Of Health On Protecting Trans Youth The American healthcare system is facing some incredible challenges: Black and Latino communities were hit harder by COVID-19, and have lower vaccination rates than white, Asian, and Native American communities. The opioid crisis is still raging, climate change is disproportionately impacting the health of communities of color, and a wave of anti-trans healthcare bills are being pushed by Republican lawmakers through multiple

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61:05

Alzheimer’s Treatment Controversy, Science Mistakes,...

Science Friday ·

2021/06/11

FDA’s Approval Of Debated Alzheimer’s Treatment Raises Controversy This week, the FDA gave the green light to a drug for the treatment of Alzheimer’s disease. The drug, a monoclonal antibody called aducanumab, is the first Alzheimer’s treatment to receive approval in almost 20 years. It targets the amyloid protein that forms the tangled plaques found in the brains of people with Alzheimer’s. But while researchers agree that aducanumab leads to less amyloid plaque, no one really knows what that means

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47:46

Genetics of Depression, Engineering Humans for Space,...

Science Friday ·

2021/06/04

Research Reveals 178 Genes Are Associated With Depression If you have a family member that suffers from depression, chances are you may have more than one. Doctors often say “depression runs in families,” but scientists really had no good idea how—until a major analysis of the genomes of 200,000 military veterans uncovered the 178 genes that influence your risk of major depression. Science Friday producer Katie Feather talked to Dr. Daniel Levey, assistant professor of psychiatry at Yale

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47:59

Fauci On 40 Years Of HIV/AIDS, Watermelon Origins,...

Science Friday ·

2021/06/04

Anthony Fauci Reflects On 40 Years Of HIV/AIDS Research Every week, the Centers for Disease Control and Prevention (CDC) releases its regular report of the latest developments on emerging diseases—a living record documenting decades of medical history, known as the Morbidity and Mortality Weekly Report (MMWR). In May 1981, former MMWR editor Michael B. Gregg got a call about an unusual deadly pneumonia, seen in young gay men in Los Angeles. The tip was from epidemiologist Wayne Shandera, Epidemic

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48:01

Sand Sustainability, Jane Goodall, Morphing Pasta,...

Science Friday ·

2021/05/28

Shifting The Sand Business To Greener Practices Sand is one of the most in-demand natural materials on the planet—some 50 billion tons of sand and gravel are mined every year. It’s because the humble sand is a key ingredient in many materials, from concrete and asphalt to microchips and glass. But sand is also heavy, needed in large quantities, and costly to ship—meaning that in some regions, local demand for sand outstrips supply. A ‘sand mafia’ exists in parts of the globe, and in others,

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48:01

Vaccine Hesitancy, Colorado River Drought,...

Science Friday ·

2021/05/28

How Do We Overcome Vaccine Hesitancy? This Memorial Day weekend, many people will be traveling to the beach, hitting the road or socializing with friends—maskless—for the first time in over a year. As of this week, 50% of people over 18 are now fully vaccinated. Another 15 to 20% of people are taking a “wait and see” approach. Of those still on the fence, some are concerned about the vaccine’s side effects; others have a long standing mistrust of the institutions responsible for the vaccine

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48:54

Cybersecurity, Baseball Physics, Opioid Trial. May...

Science Friday ·

2021/05/21

Americans’ Online Security Needs An Update Last week, all eyes were on the shutdown of a gas pipeline that delivered fuel to large portions of the Southeastern US. The shutdown was not due to a leak or planned pipeline maintenance, but to a ransomware attack that took billing computers at the pipeline operator offline. The attack had encrypted data on those computers, rendering the data unusable to the pipeline operator until they paid a ransom.In recent years, similar ransomware attacks have

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48:13

Global Vaccination, Malaria Vaccine, Zombie...

Science Friday ·

2021/05/21

How Do You Solve a Problem Like World Vaccination? Here in the U.S., it feels as if we’ve turned a corner in the COVID-19 pandemic. Most of the population can be vaccinated, and restrictions for masks and distancing are loosening. But we won’t be able to get a handle on the pandemic until the rest of the world has access to a vaccine. If you thought distributing shots to rural areas here in the U.S. was hard, imagine distributing them to every corner of the globe. President Joe Biden this week

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48:15

NFTs and Art, Neuralink, Preserving Endangered Foods....

Science Friday ·

2021/05/14

What’s Behind The Blockchain-Based Art Boom? From multi-million dollar art sales to short NBA video clips, non-fungible tokens have taken off as a way to license media in the digital realm. The blockchain-based tokens, which function as a certificate of ownership for purchasers, produce a dramatic amount of carbon emissions and aren’t actually new—but in the first quarter of 2021, buyers spent $2 billion dollars purchasing NFTs on online marketplaces. Writers, musicians, and artists are all now

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47:28

New Mask Rules, Pain Algorithm, Assorted Nuts,...

Science Friday ·

2021/05/14

Fully Vaccinated Can Unmask Often, CDC Says As the number of vaccinated Americans continues to rise and evidence mounts that the vaccines may reduce viral transmission in addition to lessening disease severity, the CDC announced Thursday that fully-vaccinated people may be able to go mask-free except in specific crowded indoor situations. The announcement caused celebration in some circles and anxiety in others, with people wondering how the new guidelines fit into their personal risk

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48:09

Beetles, Wildfires, Woodchip Bioreactor. May 7, 2021,...

Science Friday ·

2021/05/07

A Beetle’s Chemical (And Plastic) Romance For many species of beetle, the key to finding a mate is scent: Both females and males give off pheromones that signal their species, their sex, and even their maturity level. How do researchers know? In experiments with dead beetles that have been sprayed with female pheromones, live males reliably attempt to mate with the dead insects. But when one team of researchers based at the Chinese Academy of Sciences in Beijing and Syracuse University in New York

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48:01

Herd Immunity, Crossword Program. May 7, 2021, Part 1

Science Friday ·

2021/05/07

Weighing COVID-19 Vaccinations For Teens Federal officials are reporting that the Food and Drug Administration is poised to authorize Pfizer’s COVID-19 vaccine for children ages 12 to 15 by early next week—just as Canada became the first country to do so on Wednesday of this week. Pfizer has said they will seek out emergency authorization for even younger kids by the fall. But as most countries still lag far behind the United States in vaccine access for adults, public health officials are

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47:35

Viking Metal, Possible Futures, Global Pollination....

Science Friday ·

2021/04/30

Uncovering Metal Crafts Of The Viking Age Vikings are often associated with scenes of boats and fiercely-pitched battles. But new research, published in the journal Archaeological and Anthropological Sciences, shows they also had other, calmer skills. The paper details advances in the cast metalwork of objects, such as keys and ornamental brooches, that occurred in the trading city of Ribe, Denmark in the 8th and 9th century. Researchers analyzed samples of metal taken from a variety of metal

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48:08

The Past And Future Of Plastics Tech. April 30, 2021,...

Science Friday ·

2021/04/30

The Future Of Plastics Plastics do a lot of good. They’re sturdy, they’re clean, and the COVID-19 pandemic has really highlighted their benefits, with personal protective equipment like disposable gloves and masks. But its durability is also its biggest problem. We’ve all seen photos of piles of plastic trash washed up on beaches, and animals surrounded by plastic bags and straws. Those materials will take decades, if not centuries, to break down. Even as it breaks apart, it can become millions of

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47:32

Gender-Affirming Health Care, Defining ‘Life’. April...

Science Friday ·

2021/04/23

Proposed Legislation Threatens Trans Rights Nationwide Since the start of the 2021 legislative session, members of more than 30 state legislatures have proposed over 100 bills that would limit transgender children’s ability to play sports, or access gender-affirming medical care such as puberty blocking medications. One such proposal, restricting access to gender-affirming medical treatments for anyone under 18, passed the Arkansas State Legislature earlier this month, over the veto of Republican

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47:47

Climate Summit, Offshore Wind, Hummingbirds. April...

Science Friday ·

2021/04/23

World Leaders Gather Virtually For Climate Summit Forty world leaders attended an international summit on climate change to discuss how each country would commit to decreasing emissions. Sophie Bushwick from Scientific American fills us in on the commitments stated during the meeting. Plus, she talks about China launching its space station and how researchers were able to read a 17th-century letter without opening it. Offshore Wind Power Moves Forward In Massachusetts Back in 2016, the state of

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47:39

History Of Conservation, Right Whales Decline. April...

Science Friday ·

2021/04/16

Conserving More Than Just the Planet’s ‘Beloved Beasts’ Historically, “conservation” simply meant not overhunting a game animal, preserving sufficient populations to continue to hunt the following year. Over time, however, conservationists have learned to broaden their focus from individual animals to entire ecosystems, protecting not just species, but the food webs and habitat they need to thrive. But the evolution of conservationist thought hasn’t been straightforward. In her new book Beloved

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47:24

Understanding Caribbean Volcano Eruption, Billions Of...

Science Friday ·

2021/04/16

Understanding St. Vincent’s Volcanic Eruption Since April 9th, the Caribbean island of St. Vincent has been rocked by eruptions at the La Soufrière volcano. Over the last week, plumes of ash and gas have rained down on the island, and dense masses of debris, called pyroclastic flows, are destroying everything in their path. Tens of thousands of residents have been evacuated. La Soufrière has only erupted a handful of times in recorded history, most recently in 1979. But the volcano has a deadly

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